Interacting

Non-mahram approaching a group of ladies

Q: If a female is among a group of other females and a non mahram male approaches the group of females to speak to the other females she is in the group with, is it enough for this particular female to lower her gaze and refrain from useless chatter with the male while still standing in the group or is she supposed to leave the gathering when the male approaches?

Families travelling together

Q:

1. I am married, I have a sister in-law and brother in-law, they are also married. We all stay in Saudi as neighbours, so is it permissible that we three families go for umrah together in a big car provided all females are fully covered in burqa?

2. Similarly can we three families go on a picnic trip to various tourist attractions provided all females are covered in burqa but obviously the females can see the men of their family through eye opening of niqab if they don't lower their gaze but males can't. so is it permissible to travel together in this manner?

3. Another situation is if all of the three families travel in their personal car but on reaching the destination they unite,but no casual conversation is there between na mahrams of family, each family just enjoy themselves and have fun,only thing is they all go the place same day for a happiness in their personal vehicles, is it permissible to travel in this manner?